Unbounded sequence of observers exhibiting Einstein-Podolsky-Rosen steering

Article Article scientifique Article Unbounded sequence of observers exhibiting Einstein-Podolsky-Rosen steering eng 2019 author Shenoy Akshata Hejamadi 860380 author Designolle Sébastien Karl Gérard 0000-0003-0303-3556 883909 author Hirsch Flavien 660781 author Silva Ralph 843195 author Gisin Nicolas 23716 author Brunner Nicolas 510523 10.1103/PhysRevA.99.022317 1050-2947 https://link.aps.org/doi/10.1103/PhysRevA.99.022317 A sequential steering scenario is investigated, where multiple Bobs aim at demonstrating steering using successively the same half of an entangled quantum state. With isotropic entangled states of local dimension d, the number of Bobs that can steer Alice is found to be NBob∼d/logd, thus leading to an arbitrary large number of successive instances of steering with independently chosen and unbiased inputs. This scaling is achieved when considering a general class of measurements along orthonormal bases, as well as complete sets of mutually unbiased bases. Finally, we show that similar results can be obtained in an anonymous sequential scenario, where none of the Bobs know their position in the sequence. Dewey 500.2 35 Groupe de physique appliquée 135 false 801 Groupe Brunner Physical Review. A 99 022317 f4253000-7d64-44ee-af98-48ffc8430987 Article (Accepted version) Public 1810.06523.pdf 472977 application/pdf openAccess Faculté des sciences / Section de physique / Groupe de physique appliquée

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Unbounded sequence of observers exhibiting Einstein-Podolsky-Rosen steering	Physical Review. A			2019	382	500

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Shenoy, Akshata Hejamadi